Heavy Knock With Torque Applied

- Broken balancer or pulley hub. Replace parts as necessary.
- Loose torque converter bolts (automatic transaxle equipped vehicles).
- Accessory belts too tight or nicked. Replace and/or adjust tension to specifications as necessary.
- Exhaust system grounded. Reposition as necessary.
- Flywheel cracked.
- Excessive main bearing clearance. Replace as necessary.
- Excessive rod bearing clearance. Replace as necessary.